When I try opening the file on Virtual Dub it says Avisynth open failure FFVideoSource: Can't open video.mkv (C:\AMV\Video.avs.avs,line 1)My script is FFvideosource("video.mkv"). I even have the ffms2.dll file in the plugin folder in avisynth.

FlamingMangos wrote:When I try opening the file on Virtual Dub it says Avisynth open failure FFVideoSource: Can't open video.mkv (C:\AMV\Video.avs.avs,line 1)My script is FFvideosource("video.mkv"). I even have the ffms2.dll file in the plugin folder in avisynth.

There could be a couple of different things that cause this issue, so I'll try to cover everything I can think of, post again if none of these fix your issue. I am assuming you have renamed your video you are trying to convert to "video.mkv" and it is in the folder "C:\AMV" with your avs script.

Possible Issue #1The first thing I noticed is that you only mention ffms2.dll, but do not mention ffms2.avsi & ffmsindex.exe, which can mean one of two things:1) You did not copy all 3 files to your plugins folder.2) You downloaded the latest beta version that did not include those files.

NotReallyHere wrote:Uhhh... this may be a silly suggestion, but did you load the plugin? It doesn't work if it's just sitting in your plugin folder right, I think...? (it's in another location for me XD)

LoadPlugin("C:\"location location location"\ffms2.dll")

Also, you can press F5 in avisynth to see if it works in avisynth, saves some time.

Everything in the plugins folder will load automatically, if they are not you may need to reinstall AviSynth and/or check to make sure your plugins folder is in the right location. The only time you should need to use "loadplugin()" would be if the dll is in another location.

The files are in the folder but its still not working. I even tried reinstalling AviSynth but it still does not work. I have ffms2-r725-icl-4 and ffms-2.17-cplugin. I tried copying the files from ffms-2.17-cplugin to the plugin folder and it would say theres no function called FFvideosource but if I tried it with ffms2-r725-icl-4 instead it would say Avisynth open failure FFVideoSource: Can't open video.mkv (C:\AMV\Video.avs.avs,line 1). I'm so confused right now.... Why is it so complicated. Argggg....